I use FF8 and Chrome 15. And the difference is that in new version is white strap under menu. Also shifted image with the house on left side. You right, in IE8 there is no changes. I made the page by slice the picture from Photoshop.

There's the source of your problem. Code written by using this feature in PS or FW is notoriously unreliable. It's suitable for use in a demonstration of the site layout (i.e., under controlled environment), but definitely not for use on the web in a real website. Here's why -